The big change (even if Google isn’t making a big show out of it, with no official announcement that we’ve seen) is support for personalized suggestions. When enabled, the keyboard will attempt to learn from monitoring your usage which words you’re likely to string together, improving the quality of the suggestions it offers. By tying to other Google apps and services, it can plug-in to compositions you’ve prepared in the past (stuff like emails and Hangouts conversations, we assume), giving it a head start on understanding how you like to type. Alternative keyboards may have beaten Google to the punch here, but we’re happy to see it hit the official app, all the same.

Beyond that, there are some new options in the keyboard’s hidden debug settings (including some tied to this personalized suggestions feature), but most users are never going to need to worry about those.

Look for the Google Keyboard version 3.0.19373.1072412a (how about a longer build number next time, huh Google?) to start hitting Android 4.0 and later devices soon.